A prenuptial agreement is only valid if it is completed prior to marriage. After a couple is married, they may draw up a post-nuptial agreement. In the United States, prenuptial agreements are recognized in all fifty states and the District of Columbia.
Osmosis - the diffusion of water (across a membrane) Water will move in the direction where there is a high concentration of solute (and hence a lower concentration of water. A simple rule to remember is: Salt is a solute, when it is concentrated inside or outside the cell, it will draw the water in its direction.
Chemiosmosis. Definition. noun. The subsequent movement of ions from an area of higher concentration to an area of lower concentration through t ransport proteins on the selectively-permeable membrane as a result of a proton gradient that forms across the membrane that is not readily permeable to ions.